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BASH Script format, 10 years 9 months old.

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Thursday, April 5th, 2007 at 8:31:13am UTC 

  1. #!/bin/bash
  2.  
  3. ip=""; host=""; mac=""; create=false; quiet=false;
  4.  
  5. function scan_usage {
  6. cat << EOT
  7. usage: scan [-c] [-h] [-q] [search-reg]
  8.  
  9. Options
  10.  -c      create output, usable as create arguments
  11.  -h      help
  12.  -q      quiet, minimal output
  13.  
  14. the optional regular expression is passed to egrep
  15. EOT
  16. exit;
  17. }
  18.  
  19. while getopts hcq o 2>/dev/null; do
  20.         case "$o" in
  21.                 h) scan_usage;;
  22.                 c) create=true;;
  23.                 q) quiet=true;;
  24.         esac
  25.         shift;
  26. done
  27.  
  28. oldifs="$IFS";
  29. IFS="
  30. ";
  31.  
  32. if [[ ! -z $1 && $1 == "help" ]]; then
  33.         scan_usage;
  34. fi
  35.  
  36. if [[ $create == false && $quiet == false ]]; then
  37.         echo -n "scanning $_NETWORK";for l in `nmap -sP $_NETWORK | grep ^Host | awk '{print $3"|"$2} ' |\
  38.         sed -e 's/[\(\)]//g'`; do
  39.        
  40.         # use search pattern if there is one
  41.         if [[ ! -z $1 ]]; then
  42.                 l=`echo $l | egrep $1`;
  43.                 if [[ -z $l ]]; then
  44.                         continue;
  45.                 fi
  46.         fi
  47.  
  48.         ip=`echo "$l" | cut -d'|' -f1`;
  49.         host=`echo "$l" | cut -d'|' -f2`; # | sed -e 's/'"asdfasdfasdf"'//';
  50.         host=`echo "$host" | sed -e 's/\.'$_DOMAIN'//'`;
  51.        
  52.         if [[ "`hostname`" != "$host" ]]; then
  53.                 mac=`arp $ip |grep ether| sed -e 's/.*\([0-9A-F:]\{17\}\).*/\1/'`;
  54.         else
  55.                 mac=`ifconfig | grep $_INTERFACE | sed -e 's/.*\([0-9A-F:]\{17\}\).*/\1/'`;
  56.         fi
  57.        
  58.         if [[ $create == false ]]; then
  59.                 echo -e "$ip\t$mac\t$host";
  60.         else
  61.                 echo -e "$host $ip $mac";
  62.         fi
  63. done
  64. IFS="$oldifs";
  65.  
  66. exit 0;
  67.  
  68.         if [[ ! -z $1 && $1 != "help" ]]; then
  69.                 echo -n ", for $1";
  70.         fi
  71.         echo " ... please wait.";
  72. fi

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